London has a problem - one involving ghosts, spectral and other apparitions of the not-so-alive variety and the only ones who are able to feel, hear or see a ghost's presence are children. That's where Lockwood & Co. come into play. They're a psychic detective agency run by teenagers that takes on ghostly cases in order to make London a better, safer place. No job is too big or too small for them. In this case, Lockwood & Co.